>>>>> "DW" == David Wood <jbevren@starbase.globalpc.net> writes:
MV> I'm trying to set up the VDC screen to a 640x200 bitmap with 8x2
MV> pixel attribute cells. Char height is set to two, vertical display
MV> registers are quadrupled. I get a screen, but the two rightmost
MV> columns display flickering garbage. Changing the number of
MV> characters per line to 78 or less makes the bug go away. Does
MV> anyone know of a workaround?
DW> This is a silly guess, but have you tried adjusting the dram
DW> refresh? I'm just familiar enough with the VDC to know it has
DW> programmable refresh, and it might need to be changed to suit the
DW> larger amount of data being read.
It does appear to have some sort of effect on the screen bugs, but it
doesn't actually solve the problem. Weird.
--
___ . . . . . + . . o
_|___|_ + . + . + . . Per Olofsson, konstnär
o-o . . . o + MagerValp@cling.gu.se
- + + . http://www.cling.gu.se/~cl3polof/
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